Java JDK installer v2.0 for Suse

jdk-installer.sh

#!/bin/bash

##
# Install Oracle/Sun Java JDK/JRE 6 on openSUSE
##

#JDK_HOME
echo -n "Enter JDK_HOME:"
read path

echo -n "Enter Java version (1.5, 1.6_45):"
read version


if [ -z $path ] || [ -z $version ]
  then
    echo "No argument supplied" 
    exit 1
fi


if [ ! -d "$path" ]; then
    echo "$path is not a valid dir" 
    exit 1
fi
 
# Update this with JDK_HOME
JDK_HOME=$path
#version=1.6.0
 
# Normally not changed. Used to detect architecture, and set helper variables
MACHINE_TYPE=`uname -m`
if [ ${MACHINE_TYPE} == 'x86_64' ]; then
LIB_DIR=/usr/lib64
JAVA_ARCH=amd64
else
LIB_DIR=/usr/lib
JAVA_ARCH=i386
fi
 
update-alternatives --verbose --install /usr/bin/javac javac ${JDK_HOME}/bin/javac 20000 \
--slave ${LIB_DIR}/jvm/java-${version}-sun java_sdk ${JDK_HOME}/ \
--slave ${LIB_DIR}/jvm-exports/java-${version}-sun java_sdk_exports ${JDK_HOME}/ \
--slave /usr/bin/javah javah ${JDK_HOME}/bin/javah \
--slave /usr/bin/jrunscript jrunscript ${JDK_HOME}/bin/jrunscript \
--slave /usr/bin/jinfo jinfo ${JDK_HOME}/bin/jinfo \
--slave /usr/bin/jconsole jconsole ${JDK_HOME}/bin/jconsole \
--slave /usr/bin/native2ascii native2ascii ${JDK_HOME}/bin/native2ascii \
--slave /usr/bin/apt apt ${JDK_HOME}/bin/apt \
--slave /usr/bin/jhat jhat ${JDK_HOME}/bin/jhat \
--slave /usr/bin/jdb jdb ${JDK_HOME}/bin/jdb \
--slave /usr/bin/wsimport wsimport ${JDK_HOME}/bin/wsimport \
--slave /usr/bin/extcheck extcheck ${JDK_HOME}/bin/extcheck \
--slave /usr/bin/serialver serialver ${JDK_HOME}/bin/serialver \
--slave /usr/bin/javadoc javadoc ${JDK_HOME}/bin/javadoc \
--slave /usr/bin/jarsigner jarsigner ${JDK_HOME}/bin/jarsigner \
--slave /usr/bin/jmap jmap ${JDK_HOME}/bin/jmap \
--slave /usr/bin/wsgen wsgen ${JDK_HOME}/bin/wsgen \
--slave /usr/bin/jps jps ${JDK_HOME}/bin/jps \
--slave /usr/bin/jstat jstat ${JDK_HOME}/bin/jstat \
--slave /usr/bin/rmic rmic ${JDK_HOME}/bin/rmic \
--slave /usr/bin/schemagen schemagen ${JDK_HOME}/bin/schemagen \
--slave /usr/bin/jstatd jstatd ${JDK_HOME}/bin/jstatd \
--slave /usr/bin/xjc xjc ${JDK_HOME}/bin/xjc \
--slave /usr/bin/jstack jstack ${JDK_HOME}/bin/jstack \
--slave /usr/bin/appletviewer appletviewer ${JDK_HOME}/bin/appletviewer \
--slave /usr/bin/jsadebugd jsadebugd ${JDK_HOME}/bin/jsadebugd \
--slave /usr/bin/jar jar ${JDK_HOME}/bin/jar \
--slave /usr/bin/javap javap ${JDK_HOME}/bin/javap \
--slave /usr/bin/HtmlConverter HtmlConverter ${JDK_HOME}/bin/HtmlConverter \
--slave /usr/bin/idlj idlj ${JDK_HOME}/bin/idlj \
--slave /usr/bin/jcontrol jcontrol ${JDK_HOME}/bin/jcontrol \
--slave /usr/bin/jvisualvm jvisualvm ${JDK_HOME}/bin/jvisualvm \
--slave /usr/share/man/man1/jstack.1.gz jstack.1.gz ${JDK_HOME}/man/man1/jstack.1 \
--slave /usr/share/man/man1/native2ascii.1.gz native2ascii.1.gz ${JDK_HOME}/man/man1/native2ascii.1 \
--slave /usr/share/man/man1/javadoc.1.gz javadoc.1.gz ${JDK_HOME}/man/man1/javadoc.1 \
--slave /usr/share/man/man1/jstatd.1.gz jstatd.1.gz ${JDK_HOME}/man/man1/jstatd.1 \
--slave /usr/share/man/man1/jstat.1.gz jstat.1.gz ${JDK_HOME}/man/man1/jstat.1 \
--slave /usr/share/man/man1/schemagen.1.gz schemagen.1.gz ${JDK_HOME}/man/man1/schemagen.1 \
--slave /usr/share/man/man1/jinfo.1.gz jinfo.1.gz ${JDK_HOME}/man/man1/jinfo.1 \
--slave /usr/share/man/man1/javap.1.gz javap.1.gz ${JDK_HOME}/man/man1/javap.1 \
--slave /usr/share/man/man1/jarsigner.1.gz jarsigner.1.gz ${JDK_HOME}/man/man1/jarsigner.1 \
--slave /usr/share/man/man1/jrunscript.1.gz jrunscript.1.gz ${JDK_HOME}/man/man1/jrunscript.1 \
--slave /usr/share/man/man1/xjc.1.gz xjc.1.gz ${JDK_HOME}/man/man1/xjc.1 \
--slave /usr/share/man/man1/wsimport.1.gz wsimport.1.gz ${JDK_HOME}/man/man1/wsimport.1 \
--slave /usr/share/man/man1/serialver.1.gz serialver.1.gz ${JDK_HOME}/man/man1/serialver.1 \
--slave /usr/share/man/man1/apt.1.gz apt.1.gz ${JDK_HOME}/man/man1/apt.1 \
--slave /usr/share/man/man1/rmic.1.gz rmic.1.gz ${JDK_HOME}/man/man1/rmic.1 \
--slave /usr/share/man/man1/jconsole.1.gz jconsole.1.gz ${JDK_HOME}/man/man1/jconsole.1 \
--slave /usr/share/man/man1/jmap.1.gz jmap.1.gz ${JDK_HOME}/man/man1/jmap.1 \
--slave /usr/share/man/man1/appletviewer.1.gz appletviewer.1.gz ${JDK_HOME}/man/man1/appletviewer.1 \
--slave /usr/share/man/man1/jps.1.gz jps.1.gz ${JDK_HOME}/man/man1/jps.1 \
--slave /usr/share/man/man1/jsadebugd.1.gz jsadebugd.1.gz ${JDK_HOME}/man/man1/jsadebugd.1 \
--slave /usr/share/man/man1/jhat.1.gz jhat.1.gz ${JDK_HOME}/man/man1/jhat.1 \
--slave /usr/share/man/man1/javah.1.gz javah.1.gz ${JDK_HOME}/man/man1/javah.1 \
--slave /usr/share/man/man1/jar.1.gz jar.1.gz ${JDK_HOME}/man/man1/jar.1 \
--slave /usr/share/man/man1/wsgen.1.gz wsgen.1.gz ${JDK_HOME}/man/man1/wsgen.1 \
--slave /usr/share/man/man1/jdb.1.gz jdb.1.gz ${JDK_HOME}/man/man1/jdb.1 \
--slave /usr/share/man/man1/javac.1.gz javac.1.gz ${JDK_HOME}/man/man1/javac.1 \
--slave /usr/share/man/man1/extcheck.1.gz extcheck.1.gz ${JDK_HOME}/man/man1/extcheck.1 \
--slave /usr/bin/unpack200 unpack200 ${JDK_HOME}/jre/bin/unpack200 \
--slave /usr/bin/pack200 pack200 ${JDK_HOME}/jre/bin/pack200 \
--slave /usr/share/man/man1/unpack200.1.gz unpack200.1.gz ${JDK_HOME}/man/man1/unpack200.1 \
--slave /usr/share/man/man1/pack200.1.gz pack200.1.gz ${JDK_HOME}/man/man1/pack200.1
 
 
update-alternatives --verbose --install /usr/bin/java java ${JDK_HOME}/jre/bin/java 20000 \
--slave ${LIB_DIR}/jvm/jre-${version}-sun jre ${JDK_HOME}/jre \
--slave ${LIB_DIR}/jvm-exports/jre-${version}-sun jre_exports ${JDK_HOME}/jre \
--slave /usr/bin/ControlPanel ControlPanel ${JDK_HOME}/bin/ControlPanel \
--slave /usr/bin/rmid rmid ${JDK_HOME}/jre/bin/rmid \
--slave /usr/bin/policytool policytool ${JDK_HOME}/jre/bin/policytool \
--slave /usr/bin/orbd orbd ${JDK_HOME}/jre/bin/orbd \
--slave /usr/bin/rmiregistry rmiregistry ${JDK_HOME}/jre/bin/rmiregistry \
--slave /usr/bin/tnameserv tnameserv ${JDK_HOME}/jre/bin/tnameserv \
--slave /usr/bin/keytool keytool ${JDK_HOME}/jre/bin/keytool \
--slave /usr/bin/servertool servertool ${JDK_HOME}/jre/bin/servertool \
--slave /usr/share/man/man1/keytool.1.gz keytool.1.gz ${JDK_HOME}/man/man1/keytool.1 \
--slave /usr/share/man/man1/rmid.1.gz rmid.1.gz ${JDK_HOME}/man/man1/rmid.1 \
--slave /usr/share/man/man1/orbd.1.gz orbd.1.gz ${JDK_HOME}/man/man1/orbd.1 \
--slave /usr/share/man/man1/servertool.1.gz servertool.1.gz ${JDK_HOME}/man/man1/servertool.1 \
--slave /usr/share/man/man1/rmiregistry.1.gz rmiregistry.1.gz ${JDK_HOME}/man/man1/rmiregistry.1 \
--slave /usr/share/man/man1/tnameserv.1.gz tnameserv.1.gz ${JDK_HOME}/man/man1/tnameserv.1 \
--slave /usr/share/man/man1/java.1.gz java.1.gz ${JDK_HOME}/man/man1/java.1 \
--slave /usr/share/man/man1/policytool.1.gz policytool.1.gz ${JDK_HOME}/man/man1/policytool.1
 
update-alternatives --verbose --install ${LIB_DIR}/browser-plugins/libjavaplugin.so javaplugin ${JDK_HOME}/jre/lib/${JAVA_ARCH}/libnpjp2.so 20000 \
--slave /usr/bin/javaws javaws ${JDK_HOME}/jre/bin/javaws \
--slave /usr/share/man/man1/javas.1.gz javaws.1.gz ${JDK_HOME}/man/man1/javaws.1 

Great script. I was looking for something like that, but for JRE. Anyway, I was trying to add an "auto path discovering" to avoid ask user for any path, based on next command:
rpm -ql $(rpm -qa | grep jre) | grep libnpjp2.so
That will return absolute path to libnpjp2.so and use it like in:

plugin=$(rpm -ql $(rpm -qa | grep jre) | grep libnpjp2.so) && ln -svf "$plugin" /usr/lib/browser-plugins/
for 32bits or
plugin=$(rpm -ql $(rpm -qa | grep jre) | grep libnpjp2.so) && ln -svf "$plugin" /usr/lib64/browser-plugins/
for 64bits.

But you solved perfectly the architecture difficulty, so I would like to make universal your script, only asking user about version, as actual JDK version, 8u71 to simplify the user input.

Please, any suggestion?
Thank you